The plugin is available as a docker image.

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Dependencies

Before setting up the plugin, ensure that you have the following dependencies installed and configured:

  • PostgreSQL Database: You will need a PostgreSQL database to store data related to document templates and documents.
  • MongoDB Database: MongoDB is required for the HTML templates feature of the plugin.
  • Kafka: Establish a connection to the Kafka instance used by the FLOWX.AI engine.
  • Redis: Set up a Redis instance for caching purposes.
  • S3-Compatible File Storage Solution: Deploy an S3-compatible file storage solution, such as Min.io, to store document files.

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Configuration

The plugin comes with pre-filled configuration properties, but you need to set up a few custom environment variables to tailor it to your specific setup. Here are the key configuration steps:

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Redis server

The plugin can utilize the Redis component already deployed for the FLOWX.AI engine. Make sure it is configured properly.

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Authorization configuration

To connect to the identity management platform, set the following environment variables:

Environment VariableDescriptionDefault Value
SECURITY_OAUTH2_BASESERVERURLBase URL of the OAuth2/OIDC serverhttps://keycloak.example.com/auth
SECURITY_OAUTH2_CLIENT_CLIENTIDOAuth2 client ID for the Documents Plugindocument-plugin
SECURITY_OAUTH2_CLIENT_CLIENTSECRETOAuth2 client secretsecret
SECURITY_OAUTH2_REALMOAuth2 realm nameflowx

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Document processing configuration

Environment VariableDescriptionDefault Value
FLOWX_DEFAULTCLIENTTYPEDefault client typePF
FLOWX_HTML_TEMPLATES_ENABLEDEnable HTML templates featurefalse
FLOWX_HTML_TEMPLATES_PDFFONTPATHSPaths to fonts for HTML templates/statics/fonts/Calibri.ttf, /statics/fonts/DejaVuSans.ttf
FLOWX_CONVERT_DPIDPI setting for PDF to image conversion150

Set the FLOWX_HTML_TEMPLATES_PDFFONTPATHS config to select the font used for generating documents based on PDF templates.

If you want to use specific fonts in your PDF templates, override the FLOWX_HTML_TEMPLATES_PDFFONTPATHS config. By default, Calibri and DejaVuSans are available fonts.

FLOWX_CONVERT_DPI: Sets the DPI (dots per inch) for PDF to JPEG conversion. Higher values result in higher resolution images. (Default value: 150).

After making these configurations, the fonts will be available for use within PDF templates.

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Database configuration

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SQL database (PostgreSQL)

The Documents Plugin uses a PostgreSQL database for relational data storage.

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Primary MongoDB configuration

Environment VariableDescriptionExample Value
SPRING_DATA_MONGODB_URIMongoDB connection URImongodb://flowx:password@jx-document-mongodb:27017/document
MONGODB_USERNAMEMongoDB usernameflowx
MONGODB_PASSWORDMongoDB passwordpassword
SPRING_DATA_MONGODB_UUID_REPRESENTATIONUUID representation formatstandard
SPRING_DATA_MONGODB_STORAGEMongoDB storage typemongodb

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Runtime MongoDB configuration

Environment VariableDescriptionExample Value
SPRING_DATA_MONGODB_RUNTIME_ENABLEDEnable runtime MongoDB connectiontrue
SPRING_DATA_MONGODB_RUNTIME_URIRuntime MongoDB connection URImongodb://${MONGODB_USERNAME:flowx}:${MONGODB_PASSWORD:password}@jx-document-mongodb:27017/document
MONGODB_USERNAMERuntime MongoDB usernamepaperflow
MONGODB_PASSWORDRuntime MongoDB passwordpassword
SPRING_DATA_MONGODB_RUNTIME_AUTOINDEXCREATIONEnable automatic index creationfalse
SPRING_DATA_MONGODB_RUNTIME_UUIDREPRESENTATIONUUID representation format for runtime connectionstandard

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Redis configuration

Set the following values with the corresponding Redis-related values:

Environment VariableDescriptionDefault Value
SPRING_DATA_REDIS_HOSTHostname of the Redis serverlocalhost
SPRING_DATA_REDIS_PORTPort number of the Redis server6379
SPRING_DATA_REDIS_PASSWORDPassword for Redis authenticationdefaultpassword
REDIS_TTLTime-to-live (TTL) for Redis cache5000000 (miliseconds)

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Multipart upload configuration

Environment VariableDescriptionDefault Value
SPRING_SERVLET_CONTEXTPATHServlet context path/
SPRING_SERVLET_MULTIPART_MAXFILESIZEMaximum file size for uploads50MB
SPRING_SERVLET_MULTIPART_MAXREQUESTSIZEMaximum request size for multipart uploads50MB

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Basic Kafka configuration

Environment VariableDescriptionDefault Value
SPRING_KAFKA_BOOTSTRAPSERVERSAddress of Kafka server(s)localhost:9092
SPRING_KAFKA_SECURITY_PROTOCOLSecurity protocol for KafkaPLAINTEXT
SPRING_KAFKA_CONSUMER_GROUPIDConsumer group ID for the servicekafka-svc-document-consumer-local-test2
KAFKA_MESSAGE_MAX_BYTESMaximum message size in bytes52428800 (50MB)
KAFKA_AUTHEXCEPTIONRETRYINTERVALRetry interval for auth exceptions10 (seconds)

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Topic naming configuration

Environment VariableDescriptionDefault Value
KAFKA_TOPIC_NAMING_SEPARATORPrimary separator for topic names.
KAFKA_TOPIC_NAMING_SEPARATOR2Secondary separator for topic names-
KAFKA_TOPIC_NAMING_PACKAGEPackage prefix for topic namesai.flowx.
KAFKA_TOPIC_NAMING_ENVIRONMENTEnvironment segment for topic namesdev.
KAFKA_TOPIC_NAMING_VERSIONVersion suffix for topic names.v1

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Thread configuration

Environment VariableDescriptionDefault Value
KAFKA_CONSUMER_THREADPOOLS_THREADPOOLGENERIC_THREADCOUNTPERCONTAINER_DOCUMENTGENERATEHTMLINThreads for HTML document generation5
KAFKA_CONSUMER_THREADPOOLS_THREADPOOLGENERIC_THREADCOUNTPERCONTAINER_DOCUMENTPERSISTINThreads for document persistence5
KAFKA_CONSUMER_THREADPOOLS_THREADPOOLGENERIC_THREADCOUNTPERCONTAINER_DOCUMENTSPLITTINThreads for document splitting5
KAFKA_CONSUMER_THREADPOOLS_THREADPOOLGENERIC_THREADCOUNTPERCONTAINER_DOCUMENTGETURLSINThreads for document URL retrieval5
KAFKA_CONSUMER_THREADPOOLS_THREADPOOLGENERIC_THREADCOUNTPERCONTAINER_OCRINThreads for OCR processing5
KAFKA_CONSUMER_THREADPOOLS_THREADPOOLGENERIC_THREADCOUNTPERCONTAINER_FILEDELETEINThreads for file deletion5
KAFKA_CONSUMER_THREADPOOLS_THREADPOOLGENERIC_THREADCOUNTPERCONTAINER_FILEUPDATEINThreads for file updates5
KAFKA_CONSUMER_THREADPOOLS_THREADPOOLGENERIC_THREADCOUNTPERCONTAINER_FILECONVERTINThreads for file conversion5
KAFKA_CONSUMER_THREADPOOLS_THREADPOOLGENERIC_THREADCOUNTPERCONTAINER_FILEPERSISTINThreads for file persistence5
KAFKA_CONSUMER_THREADPOOLS_THREADPOOLGENERIC_THREADCOUNTPERCONTAINER_FILECOMBINEINThreads for file combining5

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Document topics

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Generate HTML documents

Environment VariableDescriptionDefault Value
KAFKA_TOPIC_DOCUMENT_GENERATE_HTML_INTopic for incoming HTML generation requestsai.flowx.dev.plugin.document.trigger.generate.html.v1
KAFKA_TOPIC_DOCUMENT_GENERATE_HTML_OUTTopic for HTML generation resultsai.flowx.dev.engine.receive.plugin.document.generate.html.results.v1

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Document persistence

Environment VariableDescriptionDefault Value
KAFKA_TOPIC_DOCUMENT_PERSIST_INTopic for incoming document persistence requestsai.flowx.dev.plugin.document.trigger.persist.document.v1
KAFKA_TOPIC_DOCUMENT_PERSIST_OUTTopic for document persistence resultsai.flowx.dev.engine.receive.plugin.document.persist.document.results.v1

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Document splitting

Environment VariableDescriptionDefault Value
KAFKA_TOPIC_DOCUMENT_SPLIT_INTopic for incoming document splitting requestsai.flowx.dev.plugin.document.trigger.split.document.v1
KAFKA_TOPIC_DOCUMENT_SPLIT_OUTTopic for document splitting resultsai.flowx.dev.engine.receive.plugin.document.split.document.results.v1

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Document URL retrieval

Environment VariableDescriptionDefault Value
KAFKA_TOPIC_DOCUMENT_GET_URLS_INTopic for incoming URL retrieval requestsai.flowx.dev.plugin.document.retrieve.urls.v1
KAFKA_TOPIC_DOCUMENT_GET_URLS_OUTTopic for URL retrieval resultsai.flowx.dev.engine.receive.plugin.document.urls.results.v1

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OCR processing

Environment VariableDescriptionDefault Value
KAFKA_TOPIC_OCR_INTopic for incoming OCR requestsai.flowx.dev.plugin.document.store.ocr.v1
KAFKA_TOPIC_OCR_OUTTopic for OCR processing resultsai.flowx.dev.engine.receive.plugin.document.ocr.results.v1

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File operation topics

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File deletion

Environment VariableDescriptionDefault Value
KAFKA_TOPIC_FILE_DELETE_INTopic for incoming file deletion requestsai.flowx.dev.plugin.document.trigger.delete.file.v1
KAFKA_TOPIC_FILE_DELETE_OUTTopic for file deletion resultsai.flowx.dev.engine.receive.plugin.document.delete.file.results.v1

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File update

Environment VariableDescriptionDefault Value
KAFKA_TOPIC_FILE_UPDATE_INTopic for incoming file update requestsai.flowx.dev.plugin.document.trigger.update.file.v1
KAFKA_TOPIC_FILE_UPDATE_OUTTopic for file update resultsai.flowx.dev.engine.receive.plugin.document.update.file.results.v1

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File conversion

| Environment Variable | Description | Default Value | | ---------------------------- | --------------------------------- | ------------------------------------------------------------------- | | KAFKA_TOPIC_FILE_CONVERT_OUT | Topic for file conversion results | ai.flowx.dev.engine.receive.plugin.document.convert.file.results.v1 |

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File persistence

Environment VariableDescriptionDefault Value
KAFKA_TOPIC_FILE_PERSIST_INTopic for incoming file persistence requestsai.flowx.dev.plugin.document.trigger.persist.file.v1
KAFKA_TOPIC_FILE_PERSIST_INTopic for incoming file persistence requestsai.flowx.dev.plugin.document.trigger.persist.file.v1
KAFKA_TOPIC_FILE_PERSIST_OUTTopic for file persistence resultsai.flowx.dev.engine.receive.plugin.document.persist.file.results.v1

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File combination

Environment VariableDescriptionDefault Value
KAFKA_TOPIC_FILE_COMBINE_INTopic for incoming file combination requestsai.flowx.dev.plugin.document.trigger.combine.file.v1
KAFKA_TOPIC_FILE_COMBINE_OUTTopic for file combination resultsai.flowx.dev.engine.receive.plugin.document.combine.file.results.v1

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Audit

Environment VariableDescriptionDefault Value
KAFKA_TOPIC_AUDIT_OUTTopic for sending audit logsai.flowx.dev.core.trigger.save.audit.v1

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General storage configuration

Environment VariableDescriptionDefault Value
APPLICATION_DEFAULTLOCALEDefault locale for the applicationen
APPLICATION_SUPPORTEDLOCALESComma-separated list of supported localesen, ro
APPLICATION_FILESTORAGE_TYPEStorage type to use (s3 or fileSystem)s3
APPLICATION_FILESTORAGE_DISKDIRECTORYDirectory for file storage when using filesystemMS_SVC_DOCUMENT
APPLICATION_FILESTORAGE_PARTITIONSTRATEGYStrategy for file organization (NONE or PROCESS_DATE)NONE
APPLICATION_FILESTORAGE_DELETIONSTRATEGYStrategy for deleting files (delete, disabled, or deleteBypassingGovernanceRetention)delete

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S3-Compatible storage configuration

Environment VariableDescriptionDefault Value
APPLICATION_FILESTORAGE_S3_ENABLEDEnable S3-compatible storagetrue
APPLICATION_FILESTORAGE_S3_SERVERURLURL of MinIO or S3-compatible serverhttp://minio-service:9000
APPLICATION_FILESTORAGE_S3_ACCESSKEYAccess key for MinIO/S3minio
APPLICATION_FILESTORAGE_S3_SECRETKEYSecret key for MinIO/S3minio123
APPLICATION_FILESTORAGE_S3_BUCKETPREFIXPrefix for bucket namesqdevlocal-preview-paperflow
APPLICATION_FILESTORAGE_S3_TEMPBUCKETName of temporary bucket for initial file uploadstemp-bucket
APPLICATION_FILESTORAGE_S3_ENCRYPTIONENABLEDEnable server-side encryptionfalse

Make sure to follow the recommended bucket naming rules when choosing the bucket prefix name.

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Logging configuration

Environment VariableDescriptionDefault Value
LOGGING_LEVEL_APPLog level for application logsDEBUG
LOGGING_LEVEL_MONGO_DRIVERLog level for MongoDB driverINFO
LOGGING_LEVEL_LIQUIBASELog level for Liquibase database migrationsINFO
LOGGING_LEVEL_REDISLog level for Redis/Lettuce clientOFF
LOGGING_LEVEL_ROOTRoot logging level for the application-
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